I'm a 38 waist and after some discussion with an online Rep decided to go with an XL. They fit very comfortably. There's lots of room, but they're not too big. I probably could have gotten away with a Large but I like my clothes to fit loosely. The seem like a good quality, they have been worn twice and washed twice so far. There is some very minor fraying at a couple seams but it doesn't appear as though it will get too bad.